Move navigation controls to the bottom

stylesheets/_lightbox.scss

@@ -19,7 +19,6 @@
   background: transparent;
   width: 50px;
   height: 50px;
-  margin-bottom: 10px;
 
   display: inline-block;
   cursor: pointer;

ts/components/Lightbox.tsx

@@ -21,14 +21,21 @@ interface Props {
 const styles = {
   container: {
     display: 'flex',
-    flexDirection: 'row',
+    flexDirection: 'column',
     position: 'absolute',
     left: 0,
     right: 0,
     top: 0,
     bottom: 0,
     backgroundColor: 'rgba(0, 0, 0, 0.9)',
-    padding: 40,
+  } as React.CSSProperties,
+  mainContainer: {
+    display: 'flex',
+    flexDirection: 'row',
+    paddingTop: 40,
+    paddingLeft: 40,
+    paddingRight: 40,
+    paddingBottom: 0,
   } as React.CSSProperties,
   objectContainer: {
     flexGrow: 1,
@@ -48,14 +55,31 @@ const styles = {
     flexDirection: 'column',
     marginLeft: 10,
   } as React.CSSProperties,
+  navigationContainer: {
+    flexShrink: 0,
+    display: 'flex',
+    flexDirection: 'row',
+    justifyContent: 'center',
+    padding: 10,
+  } as React.CSSProperties,
+  saveButton: {
+    marginTop: 10,
+  },
+  iconButtonPlaceholder: {
+    // Dimensions match `.iconButton`:
+    display: 'inline-block',
+    width: 50,
+    height: 50,
+  },
 };
 
 interface IconButtonProps {
-  type: 'save' | 'close' | 'previous' | 'next';
   onClick?: () => void;
+  style?: React.CSSProperties;
+  type: 'save' | 'close' | 'previous' | 'next';
 }
 
-const IconButton = ({ onClick, type }: IconButtonProps) => {
+const IconButton = ({ onClick, style, type }: IconButtonProps) => {
   const clickHandler = (event: React.MouseEvent<HTMLAnchorElement>): void => {
     event.preventDefault();
     if (!onClick) {
@@ -70,10 +94,15 @@ const IconButton = ({ onClick, type }: IconButtonProps) => {
       href="#"
       onClick={clickHandler}
       className={classNames('iconButton', type)}
+      style={style}
     />
   );
 };
 
+const IconButtonPlaceholder = () => (
+  <div style={styles.iconButtonPlaceholder} />
+);
+
 export class Lightbox extends React.Component<Props, {}> {
   private containerRef: HTMLDivElement | null = null;
 
@@ -95,6 +124,7 @@ export class Lightbox extends React.Component<Props, {}> {
         onClick={this.onContainerClick}
         ref={this.setContainerRef}
       >
+        <div style={styles.mainContainer}>
           <div style={styles.objectContainer}>
             {!is.undefined(contentType)
               ? this.renderObject({ objectURL, contentType })
@@ -103,14 +133,25 @@ export class Lightbox extends React.Component<Props, {}> {
           <div style={styles.controls}>
             <IconButton type="close" onClick={this.onClose} />
             {this.props.onSave ? (
-            <IconButton type="save" onClick={this.props.onSave} />
+              <IconButton
+                type="save"
+                onClick={this.props.onSave}
+                style={styles.saveButton}
+              />
             ) : null}
+          </div>
+        </div>
+        <div style={styles.navigationContainer}>
           {this.props.onPrevious ? (
             <IconButton type="previous" onClick={this.props.onPrevious} />
-          ) : null}
+          ) : (
+            <IconButtonPlaceholder />
+          )}
           {this.props.onNext ? (
             <IconButton type="next" onClick={this.props.onNext} />
-          ) : null}
+          ) : (
+            <IconButtonPlaceholder />
+          )}
         </div>
       </div>
     );

ts/components/LightboxGallery.md

@@ -4,7 +4,10 @@ const noop = () => {};
 const items = [
   { objectURL: 'https://placekitten.com/800/600', contentType: 'image/jpeg' },
   { objectURL: 'https://placekitten.com/900/600', contentType: 'image/jpeg' },
-  { objectURL: 'https://placekitten.com/1000/800', contentType: 'image/jpeg' },
+  { objectURL: 'https://placekitten.com/980/800', contentType: 'image/jpeg' },
+  { objectURL: 'https://placekitten.com/656/540', contentType: 'image/jpeg' },
+  { objectURL: 'https://placekitten.com/762/400', contentType: 'image/jpeg' },
+  { objectURL: 'https://placekitten.com/920/620', contentType: 'image/jpeg' },
 ];
 
 <div style={{position: 'relative', width: '100%', height: 500}}>